The composition of Pachyrrhizus erosus (yam bean) seed oil

The fatty acid composition of the oil has been examined by gas-liquid chromatography and found to contain 26.7% of palmitic, 5.7% of stearic, 33.4% of oleic and 34.2% of linoleic acids. The unsaponifiable matter of the oil, which contains 55% of digitonide-forming sterols, has been separated by thin-layer chromatography into six components, two of which give positive Liebermann-Burchard and one positive Emmerie-Engel tests.